[Bug]: Unit track marks disappear on some terrain types

### Describe the Bug

The currently known maps that cannot display track imprints: all frithen terrains generated using map gen.
I remember encountering other maps without track marks before, but I haven't been able to find which specific map it is yet. If I find more in the future, I will post them here

### Reproduce the bug

By generating a map of the frighten terrain through map gen, it can be seen that the units do not have track marks.

### Screenshots

https://github.com/user-attachments/assets/a13ba254-8551-4d25-af18-2f90ab484460

### Additional context

_No response_